"I've often said that my rats have taught me more than I've taught them."

"The problem is not to adjust people to the world they live in, but to adjust the world to the people who live in it."

"I did not need to be 'taught' to be scientific. It was a natural way of thinking."

"The rat's behavior is lawful, and by lawful I mean it can be predicted and controlled."

"Give me a child and I'll shape him into anything."